RENTON, Wash. - running back Eddie Lacy said his ankle is fine and his body - aka weight - is where it needs to be as the Seahawks prepare for their first preseason game.

Fellow running back Thomas Rawls is trying to regain his form from the 2015 season and prove he can remain healthy for en entire season.

Lacy and Rawls figure to be the primary competitors to start at running back for the Seahawks. Both have looked solid during training camp, but coach Pete Carroll will start to receive answers to who will win the battle when the Seahawks play at the Los Angeles Chargers Sunday in their first preseason game.

The primary issue for Lacy has been keeping his weight under control. Carroll confirmed the Lacy met his latest weight requirement of weighing no more than 250 pounds in July, earning another $55,000.

"Yep," Carroll said Wednesday. "Perfectly on track."

The weight clause in his contract calls for him to earn another $55,000 if he weighs at 245 pounds in September. Lacy ran well during Thursday's practice, showing no effects of an ankle injury that that ended his season after Week 6 of the 2016 season. Lacy had run 71 times for 360 yards and a 5.1 yards per carry average in 2016.

"My ankle is fine," Lacy told reporters last week. "[My body] is going to be where it needs to be."

According to reports, the Seahawks want Lacy's playing weight at around 245 pounds. Carroll said Lacy is in shape and hopes he can regain the form that led to him producing back-to-back seasons of at least 1,100 rushing yards in 2013 and 2014.

"He's a load, just like we thought, you can see him bouncing off guys the way we expect," Carroll said Wednesday. "We are not trying to make him a small back, we want him to be a big back and run big, and he's ready to do that."

Rawls' issue isn't weight control, it's staying healthy. He suffered a broken leg and missed seven games in 2016. He did produce a Seahawks franchise playoff single-game record of 161 yards against Detroit, but he's looking for the form that helped him gain 830 yards in 13 games during a breakout rookie year in 2015. But that season was cut short when he sustained an injured ankle during Week 14.

Rawls did return from the broken leg in 2016, Carroll said he never fully recovered from the injury. Carroll that the third-year back seems to have fully restored his confidence and seems to be back to his 2015 form.

"He looks fantastic. He's really on his game," Carroll said Friday. "He's hitting everything right. He's very confident and he's playing fast. He looks like he's rarin' to go.

"It was a very difficult start last year - the whole offseason ... he was just trying to get back. To see him so clear and well prepared - he's applied himself beautifully. I feel like he has a chance to have a really good start to the season."

The Seahawks are trying to replace running back Marshawn Lynch, who anchored what was a impressive ground game from 2011 to 2014. Last year, the rushing attack sputtered and was inconsistent, and the Seahawks relied too much on the arm of quarterback Russell Wilson.